 const removeLeadingZero = (str) => {
  if (!str) return "";
  return str.replace(/^0+/, '');
}

console.info(removeLeadingZero("016D")) // 16D
console.info(removeLeadingZero("001A")) // 01A0
console.info(removeLeadingZero("020B")) // 01A0
console.info(removeLeadingZero("10C")) // 01A0
console.info(removeLeadingZero("000000001G")) // 01A0
console.info(removeLeadingZero("0000000012G")) // 01A0
